20100102102002 has 8 divisors (see below), whose sum is σ = 32469395703276. Its totient is φ = 9276970200912.

The previous prime is 20100102101953. The next prime is 20100102102071. The reversal of 20100102102002 is 20020120100102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15634914718201 + 4465187383801 = 3954101^2 + 2113099^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386540425013 + ... + 386540425064.

Almost surely, 2^{20100102102002} is an apocalyptic number.

20100102102002 is a deficient number, since it is larger than the sum of its proper divisors (12369293601274).

20100102102002 is a wasteful number, since it uses less digits than its factorization.

20100102102002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773080850092.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20100102102002 its reverse (20020120100102), we get a palindrome (40120222202104).

The spelling of 20100102102002 in words is "twenty trillion, one hundred billion, one hundred two million, one hundred two thousand, two".